摘要
本文提出了考虑橡胶隔震支座剪切变形状态下竖向刚度特性的转动刚度计算式,并应用到大高宽比塔型隔震结构体系多质点体系计算模型分析隔震结构的地震反应。本研究同时还完成了5层塔型钢结构隔震模型结构的振动台试验,模型结构加速度反应、层间剪力和隔震层恢复力特性等试验结果与采用多质点体系计算模型解析结果一致,表明多质点体系计算模型可以有效地用于分析塔型隔震结构地震反应。
The computation model and shaking table test for an isolated MDOF tower structure are studied. A formula for the rotation stiffness of MDOF model is proposed in the paper. It is considered with the offset vertical stiffness of bearing isolation in analyzing the earthquake response for the isolated tower structure. At same time, a shaking table test is performed on a 5-story steel model in order to grasp the behaviors of the isolated tower structure under earthquake. It is found that the computing is in agreement with that of the test.
出处
《土木工程学报》
EI
CSCD
北大核心
2003年第5期64-70,共7页
China Civil Engineering Journal
基金
北京市自然科学基金资助(8992003)
